Python and the web

Okay, so my question is that I want to create an application that will backup files that the user wants and then upload them to a web-based drive. I really am just a python guy; but I am open to new things. So is this going to be a pain in the ass on python? If not, what is the best way to do it and what will I need? Or, what about be the best language to use? I would love you forever if you gave some input. THANKS!